Shimoda, Asako
Ueda, Koji
Nishiumi, Shin
Murata-Kamiya, Naoko
Mukai, Sada-atsu
Sawada, Shin-ichi
Azuma, Takeshi
Hatakeyama, Masanori
Akiyoshi, Kazunari
Article History
Received: 26 June 2015
Accepted: 16 November 2015
First Online: 7 January 2016
Competing interests
: The authors declare no competing financial interests.